Yeah this drama is over for at least one more season and Osimhen agreed to be loaned to Galatasaray, as you said this is a gamble for Osimhen because he has to prove that he deserves to play for a better club if he manages to be the best then he has a chance to return to the popular league on the other hand, if his performance is not better then his career may end in the popular league. For now we haven't seen any improvement from Osimhen's few games and this situation is a little disturbing to Osimhen, but yeah there's still a reason to dismiss it, he needs to adapt.
Osimhen still has time until mid-season to answer all doubts or make more contribution in Europa League which will be played this week, It doesn't matter if his performance is not optimal in the local league, but the European League is the right moment to prove it and if he is able to do so then he will get back the market value + the opportunity to move. For this season Osimhen has lost 20 Million in market value and this will continue if he stays in this situation yeah maybe it will be under 100 million.